대변위 풍진동 실험장치를 이용한 송전선 풍동실험

This study was conducted as an effort to find the method to carry out a complete investigation of the galloping phenomenon of transmission lines under ice and snow accretion. With this study a method and test device that enables simulation of the galloping motion of actual transmission lines in a wind tunnel have been developed. The test apparatus proposed here composed of a transmission line section model supported in the wire axis direction by eight elastic cords. This equipment allows the section model to vibrate with large amplitudes at low frequencies in the vertical, horizontal, and torsional directions. The wind tunnel test results has validated that the test apparatus would be able to confirm the phenomenon of the actual transmission line Galloping.